Cam Shaft 1974 455

With number 1 cylinder at 12 BTDC is number 6 cylinder exhaust valve open?
 
No # 6 cyl valve is basically closed. I can't wiggle exhaust until I get to 0. But I would say it is closed.
 
Larryd said:
No # 6 cyl valve is basically closed. I can't wiggle exhaust until I get to 0. But I would say it is closed.
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That's with number 1 cylinder at 12 BTDC compression stroke? Number 6 cylinder should be on exhaust stroke. The rocker arm on the valve side on 6 exhaust should be noticeably lower than 6 intake showing its open.
 
Well # 1 cylinder at 12 btdc compression stroke is definitely where I have it. And # 6 cylinder exhaust is definitely in closed position . So it appears from what you have said that I have not placed the cam gear correctly. I really appreciate your information that helps me alot. I will know for sure when I have done it right! Thank You !
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Pull the distributor, turn the crank 1 turn. Look again at the valves.
 
Ok I will do that. I will do that tomorrow and let you know what I see with 1 crank turn.
 
Ok I turned the crank 1 turn and #6 intake went down and up (open close) . And #1 exhaust went down and up (open close)
 
Larryd said:
Ok I turned the crank 1 turn and #6 intake went down and up (open close) . And #1 exhaust went down and up (open close)
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That's not what I'm asking. I'm sure valves go up and down. I'm trying to tell you with the engine at #1 TDC both #1 valves should be up/closed and #6 exhaust valve should be down/open. If #6 exhaust valve is closed when you are supposedly at 1 TDC you are Not at 1 you are at 6 TDC.
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Ok what I see is #1 intake (compression cycle) valve has closed and damper line is about 4" from 12 degrees mark. And at that point I see #6 exhaust open. So if I continue to the 12 degree mark #6 exhaust is almost closed. If I go on to 0 it is fully closed (rocker wiggle).
 
That sounds like you are on 6 TDC.
How are you determining you are on 1 TDC?
 
Well I was basing it on watching the #1 cylinder exhaust valve open close and the intake valve open and close at 6 1/4 inches (rocker wiggle) on damper from 12 degree indicator. And #6 exhaust valve is still open and appears to be headed back towards closing at the 6 1/4 inch mark from 12 degree indicator.
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Then the piston comes up for the compression on # 1 as I move it to 12 degrees indicator. Exhaust valve has closed on #6 also at the 12 degrees indicator.
 
Did you read the link in post 51?
 
Yes I read those on Ames website . I will read them again to gain the full understanding . Tomorrow I will go do what they say and see if I can confirm TDC. I bought a TDC tool today also.
 
I just verified that I am at TDC and also damper line is in correct position. Well we tried another initial start and no run so we backed off the rocker arm nuts 1/2 turn tried start and it rough started so we backed off another 1/4 turn and it started and ran alot better but still kicking back a little air fuel out the throttle body. So we think it would be best if I moved to the rockers you told me about earlier some kind of a roller tip rocker. So what would you recommend in the way of rocker arms 1.5 1.6 roller tip? I assume the bottleneck studs will be useable for new rockers.
We think the new GM lifters may have caused all of this situation.
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Larryd said:
I just verified that I am at TDC and also damper line is in correct position. Well we tried another initial start and no run so we backed off the rocker arm nuts 1/2 turn tried start and it rough started so we backed off another 1/4 turn and it started and ran alot better but still kicking back a little air fuel out the throttle body. So we think it would be best if I moved to the rockers you told me about earlier some kind of a roller tip rocker. So what would you recommend in the way of rocker arms 1.5 1.6 roller tip? I assume the bottleneck studs will be useable for new rockers.
We think the new GM lifters may have caused all of this situation.
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The 1.52 from Competition Cams. Can you post a picture of a rocker arm stud?
 
I did post a picture of the bottleneck 3/8 stud. The picture is the QR code post 37. I used my iphone to create qr code. I checked it and it worked for me. Let meknow.
 
Larryd said:
I did post a picture of the bottleneck 3/8 stud. The picture is the QR code post 37. I used my iphone to create qr code. I checked it and it worked for me. Let meknow.
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I have an android 13 phone. It's shows as a QR code. When I click on it the only image is a QR code. I use another phone to scan it and some illegible code appears.
 
Well I tried to put my picture on this website and it would not take it said itwas too big. Could I send it to you some other way?
 
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